drivers/gpu/drm/mxsfb/mxsfb_drv.h

   1 /*
   2  * Copyright (C) 2016 Marek Vasut <marex@denx.de>
   3  *
   4  * i.MX23/i.MX28/i.MX6SX MXSFB LCD controller driver.
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License
   8  * as published by the Free Software Foundation; either version 2
   9  * of the License, or (at your option) any later version.
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  */
  15
  16 #ifndef __MXSFB_DRV_H__
  17 #define __MXSFB_DRV_H__
  18
  19 struct mxsfb_devdata {
  20         unsigned int     transfer_count;
  21         unsigned int     cur_buf;
  22         unsigned int     next_buf;
  23         unsigned int     debug0;
  24         unsigned int     hs_wdth_mask;
  25         unsigned int     hs_wdth_shift;
  26         unsigned int     ipversion;
  27 };
  28
  29 struct mxsfb_drm_private {
  30         const struct mxsfb_devdata      *devdata;
  31
  32         void __iomem                    *base;  /* registers */
  33         struct clk                      *clk;
  34         struct clk                      *clk_axi;
  35         struct clk                      *clk_disp_axi;
  36
  37         struct drm_simple_display_pipe  pipe;
  38         struct drm_connector            connector;
  39         struct drm_panel                *panel;
  40         struct drm_fbdev_cma            *fbdev;
  41 };
  42
  43 int mxsfb_setup_crtc(struct drm_device *dev);
  44 int mxsfb_create_output(struct drm_device *dev);
  45
  46 void mxsfb_enable_axi_clk(struct mxsfb_drm_private *mxsfb);
  47 void mxsfb_disable_axi_clk(struct mxsfb_drm_private *mxsfb);
  48
  49 void mxsfb_crtc_enable(struct mxsfb_drm_private *mxsfb);
  50 void mxsfb_crtc_disable(struct mxsfb_drm_private *mxsfb);
  51 void mxsfb_plane_atomic_update(struct mxsfb_drm_private *mxsfb,
  52                                struct drm_plane_state *state);
  53
  54 #endif /* __MXSFB_DRV_H__ */